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252774193 = 73736951
BaseRepresentation
bin11110001000100…
…00011100110001
3122121122021000011
433010100130301
51004202233233
641025454521
76156355000
oct1704203461
9577567004
10252774193
1111a758aa1
12707a1441
13404a4339
14257dcc37
15172d10cd
hexf110731

252774193 has 8 divisors (see below), whose sum is σ = 294780800. Its totient is φ = 216663300.

The previous prime is 252774101. The next prime is 252774199. The reversal of 252774193 is 391477252.

It is not a de Polignac number, because 252774193 - 29 = 252773681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252774199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368133 + ... + 368818.

It is an arithmetic number, because the mean of its divisors is an integer number (36847600).

Almost surely, 2252774193 is an apocalyptic number.

It is an amenable number.

252774193 is a deficient number, since it is larger than the sum of its proper divisors (42006607).

252774193 is an frugal number, since it uses more digits than its factorization.

252774193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736972 (or 736958 counting only the distinct ones).

The product of its digits is 105840, while the sum is 40.

The square root of 252774193 is about 15898.8739538371. The cubic root of 252774193 is about 632.2821346539.

The spelling of 252774193 in words is "two hundred fifty-two million, seven hundred seventy-four thousand, one hundred ninety-three".

Divisors: 1 7 49 343 736951 5158657 36110599 252774193